EP0292891B1 - Dispositif pour dérouler des produits imprimés enroulés en formation d'écailles de poisson sur un noyau d'enroulement à l'aide d'une bandelette d'enroulement - Google Patents

Dispositif pour dérouler des produits imprimés enroulés en formation d'écailles de poisson sur un noyau d'enroulement à l'aide d'une bandelette d'enroulement Download PDF

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Publication number
EP0292891B1
EP0292891B1 EP88108121A EP88108121A EP0292891B1 EP 0292891 B1 EP0292891 B1 EP 0292891B1 EP 88108121 A EP88108121 A EP 88108121A EP 88108121 A EP88108121 A EP 88108121A EP 0292891 B1 EP0292891 B1 EP 0292891B1
Authority
EP
European Patent Office
Prior art keywords
winding
roll
conveyor belts
tape
printed products
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP88108121A
Other languages
German (de)
English (en)
Other versions
EP0292891A1 (fr
Inventor
Walter Reist
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ferag AG
Original Assignee
Ferag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ferag AG filed Critical Ferag AG
Publication of EP0292891A1 publication Critical patent/EP0292891A1/fr
Application granted granted Critical
Publication of EP0292891B1 publication Critical patent/EP0292891B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H5/00—Feeding articles separated from piles; Feeding articles to machines
    • B65H5/28—Feeding articles stored in rolled or folded bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/41—Winding, unwinding
    • B65H2301/419—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means
    • B65H2301/4192—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation
    • B65H2301/41922—Winding, unwinding from or to storage, i.e. the storage integrating winding or unwinding means for handling articles of limited length in shingled formation and wound together with single belt like members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/19—Specific article or web
    • B65H2701/1932—Signatures, folded printed matter, newspapers or parts thereof and books

Definitions

  • the present invention relates to a device for unwinding printed products wound together with a winding tape in a scale formation on a winding core according to the preamble of claim 1.
  • Such a device is known for example from EP-A2 01 42 745 and the corresponding US Pat. No. 4,597,541.
  • the winding core is rotatably mounted on a fixed bearing.
  • a continuous conveyor can be placed on the winding or the winding core to remove the unwound scale formation.
  • the continuous conveyor it is necessary for the continuous conveyor to be designed in such a way that the printed products are reliably removed at the various positions which the continuous conveyor assumes in the course of the unwinding process. This requires a complex construction of the continuous conveyor.
  • the winding for storage has to be pushed onto a bearing shaft or the like, which in turn requires corresponding devices.
  • a further device for unwinding printed products is known.
  • the printed products are wound in a scaly form between two winding tapes, a pair of winding bobbins, wound on a drum.
  • the pair of winding tapes is unwound from the drum together with the printed products, and the two tapes diverge after their contents have been emptied on a conveyor to their individual, separate storage rolls.
  • the shingled stream is led away from the roll in an approximately horizontal direction by the pair of winding tapes.
  • the height of the entire drum is adjusted to compensate for the more or less thickly wound layer of the printed products.
  • This device is not suitable for unwinding printed products that are wound on a winding core with only one wrapping tape in a shingled formation, because they are discharged oversized. It is also necessary with this device that the drum with the winding wound on the hub, which can be of considerable weight, has to be moved upwards due to its decreasing thickness so that the unwinding point remains at the same height.
  • the present invention has for its object to provide a device of the type mentioned, which has a simplified construction and is easier to handle.
  • the winding is supported on two parallel, spaced-apart support tapes; the winding tape is not clamped between the carrying tapes and the winding, which increases the stability of the winding and enables the winding tape to be carried away freely.
  • the rollers are rotatably mounted on shafts, which are preferably arranged in a fixed position on a frame.
  • the carrier tapes either have a certain elasticity, so that their load-bearing dreams are extended by the weight of the winding, and the winding between the two rollers assumes a stable position, or the carrier tapes are loosely placed around the rollers in the unloaded state, so that the returning strand is always tensioned, while the load-bearing strand sags due to the weight of the wrap.
  • the one rollers are rotatably mounted on a shaft which is arranged in a stationary manner on the frame, while the other shaft is arranged such that it can be changed in the horizontal direction.
  • This ensures that carrying tapes with very little elasticity take on a defined position even when not loaded, and that the changeable shaft can move against the stationary shaft when loaded by the winding or the empty winding core, so that the load-bearing strand of the carrying tapes can be moved by the weight of the winding or the winding core is pressed down so far that the winding or the winding core also assumes a stable position between the two rollers.
  • the sag of the load-bearing strands can be regulated with a decreasing winding weight, so that the winding still assumes a stable position between the rollers even towards the end of the unwinding process.
  • the winding is mounted between lateral guides arranged essentially parallel to the carrier tapes on the carrier tapes.
  • the carrying tapes are operatively connected to the drive.
  • the tape reel is driven by means of the same drive in such a way that a slip clutch between the tape reel and the drive can ensure that the winding tape is under constant tensile stress.
  • the tape reel is mounted below the effective strands of the supporting tapes.
  • the winding tape crosses the load-bearing strands before the printed products, seen in their conveying direction, detach from the winding.
  • the printed products unwound from the roll come to rest on the carrier tapes when separated from them and are guided away from the roll by means of these.
  • a limitation that can be applied to the winding core is provided. This prevents the roll from unrolling from the tape, even if it is tightly tensioned in the unloaded state and the axes of the rolls are not displaceably mounted, and large acceleration or deceleration forces occur.
  • Fig. 1 the device for unwinding together with a winding tape 10 in scale formation S on a winding core 12 printed products 14 is designated 16.
  • a winding 32 is described in more detail in CH-PS 642 602 and the corresponding US-PS 4,438,618.
  • Two shafts 20, 22 are arranged in a stationary manner on a frame 18.
  • An upper common tangent applied to the rollers 24, 26 runs horizontally.
  • An endless conveyor belt 28 is guided around each two corresponding rollers 24, 26.
  • On the upper run 30 of these tapes 28, 28 ' is the winding 32, consisting of the winding core 12, the wound printed products 14 and the also wound winding tape 10, and is freely rotatable and not supported.
  • the load-bearing strands 30 sag under the weight of the winding 32, so that they run upwards towards the two rollers 24, 26.
  • the winding 32 is enclosed by the support tapes 28, 28 'by the wrap angle ⁇ .
  • Guides 34 are arranged on both sides of the winding 32 and are fastened to the frame 18, cf. also Fig. 2.
  • the guides 34 consist of a tubular profile and are designed as a rectangular frame. Between the end walls 36 of the winding 32 and the guides 34, a small air gap is provided so that the winding 32 on the support bands 28, 28 'can rotate freely about its axis of rotation 38 without the winding being in contact with the guides 34.
  • the guides 34 are arranged in pairs symmetrically to the vertical plane A through the axis of rotation 38 of the winding 32. The guides 34 of each pair are spaced so far apart that the winding core 12 always comes to rest between two opposite guides 34.
  • the guides 34 prevent the roller from running off to the side from the support bands 28, 28 'if, for any reason, the winding 32 should move from the center. However, the guides 34 also reduce the risk of accidents for the operating personnel, because they reduce the risk of coming into contact with the winding 32, which nevertheless rotates quickly.
  • a measure which further increases safety is shown in dashed lines in FIG. 1.
  • a stub shaft 42 is supported on the winding core 12 with spokes 40. From FIG. 2 it can be seen that the stub shaft 42 (shown in dashed lines) projects laterally beyond the end faces 36 of the winding 32 and comes to rest between two of the symmetrically arranged guides 34. A roll of the roll 32 from the support bands 28, 28 'in their running direction is also prevented. A limitation of the permissible displacement of the winding 32 in the direction of the support tapes 28, 28 'can of course also be designed in a different way than suggested here.
  • Securing by means of the shaft stub 42 or another limitation can be dispensed with if a sufficiently large sag of the upper runs 30 is guaranteed by the weight of the winding 32 or the winding core 12.
  • the shafts 20, 22 are arranged stationary on the frame 18. If endless carrier tapes 28, 28 'with very low elasticity are used, it is necessary that these carrier tapes 28, 28' are guided very loosely around the rollers 24, 26 in the unloaded state; these will only abut against the rollers 24, 26 under the weight of the winding core 12 or the entire winding 32 and thus ensure the necessary sag of the load-bearing strands 30, the retracting strands tensing.
  • Another possibility is shown in dashed lines in FIG. 1.
  • the shaft 20 is mounted in horizontal longitudinal guides 44 on the frame 18.
  • a compression spring 46 ensures that the straps 28, 28 'are always tense even in the unloaded state. When loaded by the winding core 12 or the winding 32, the spring is compressed and the shaft 20 comes to a stop at the spring-side end of the longitudinal guide 44. The weight of the winding 32 or the winding core 12 thus causes the rollers 24 to move in the direction against the rollers 26.
  • the tape reel 48 is arranged between the two rollers 26 arranged on the shaft 22 for winding the winding tape 10 unwound from the winding 32.
  • the rollers 26 rotate with the shaft 22, and the shaft 22 is rotatably mounted on the frame 18.
  • the shaft 22 is operatively connected to the drive 52 by means of a chain drive 50.
  • a chain drive or belt drive can take the place of the chain drive 50.
  • the drive 52 is operatively connected to a slip clutch 56 by means of a second chain drive 54.
  • the output of the slip clutch 56 is operatively connected to the tape reel 48. It can be seen from FIG. 1 that, due to the different ratios of the chain drives 50, 54, the tape reel 48 is driven at a greater rotational speed than the rollers 26. The mode of operation of the drive will be described further below.
  • a conveyor 58 is arranged after the rollers 26.
  • This conveyor 58 is a known belt conveyor.
  • the device 16 for unwinding of coils 32 works as follows: A full winding 32 is placed on the upper strands 30 of the support tapes 28, 28 '. This can be done with known carriers, such as cranes or forklifts. If the coils 32 are placed from the side onto the carrier tape 28, the side guides 34 are removed from the frame 18 for this purpose or pivoted out of the area of the coil 32. Since the winding 32 comes to lie between the rollers 24, 26 and ensures that, as described above, the sagging of the support tapes 28, 28 'takes place due to the load from the winding 32, the winding takes a stable position in the middle between the two rollers 24, 26.
  • the winding 32 never comes to rest on the rollers 24, 26, but it is always between the rollers 24, 26 only on the support bands 28, 28 '.
  • the guides 34 are then reassembled on the frame 18 or pivoted back into their original position.
  • the winding 32 can also be placed on the support tapes 28, 28 'from above. It is then not necessary to remove the guides 34.
  • the winding 32 is placed on the carrying tapes 28, 28 'in such a way that the outer end of the winding tape 10 is guided away in the direction of movement B of the upper run 30 and can be fastened to the tape reel 48.
  • the moment of the drive 52 which is now switched on is transmitted to the shaft 22 by means of the chain drives 50, 54 Rollers 26 and the tapes 28, 28 'and transferred to the reel 48.
  • the direction of rotation of the rollers 26 is designated C. Since the winding 32 rests freely rotatably on the support bands 28, 28 'and causes a sag of the upper runs 30 due to its weight, its position between the rollers 24, 26 is defined and it rotates in the direction of arrow D at the same unwinding speed, how the upper runs 30 of the carrier tapes 28, 28 'move in the direction B. Since the ratio of the chain drive 54 is greater than that of the chain drive 50, the winding tape 10 is always kept under a defined tension by means of the slip clutch 56.
  • the winding tape 10 separates in the central region between the rollers 24 and 26, within the angle of wrap ⁇ , from the winding 32 and crosses the effective strands 30 of the support tapes 28, 28 'in scale formation S on the winding core 12 wound printed products 14 separate from the winding 32 shortly after the winding tape 10 has come off and come to rest on the upper runs 30.
  • the printed products 14 are conveyed away by means of the carrying belts 28, 28 'from the winding 32 to the area of the rolls 26. There the printed products 14 are transferred to the conveyor 58, which conveys them to the next processing station.
  • the changing speed difference between the rollers 26 rotating at approximately constant speed and the continuously increasing tape reel 48 with the wound winding tape 10 is compensated for by the slip clutch 56.
  • the winding tape 10 is constantly under an approximately constant tension.
  • Fig. 3 the size of the full roll 32 is shown in dash-dotted lines.
  • the shaft 22 has a detachable shaft piece in the area of the tape reel 48.
  • the full is released from the slip clutch 56 and removed together with the wound winding tape 10 from the shaft piece, and an empty reel 48 is inserted in the reverse order.
  • the tape reel 48 is rotatably mounted on a separate rotary shaft which is arranged on the frame 18.
  • the end of the winding tape 10 on the winding core side can also remain in connection with the winding core 12, and the tape reel 48 wrapped with the winding tape 10 is freely available together with the winding core 12, or the winding tape 10 is separated from the winding core 12, the full tape reel 48 stands thus at your own disposal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Unwinding Webs (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Replacement Of Web Rolls (AREA)
  • Discharge By Other Means (AREA)
  • Winding Of Webs (AREA)

Claims (12)

1. Dispositif pour dérouler des produits imprimés enroulés en formation imbriquée, conjointement avec une bande d'enroulement, sur un mandrin de bobinage, comprenant un palier pour le rouleau (32), une bobine de bande (48) montée de manière tournante et pouvant être entraînée pour l'enroulement de la bande d'enroulement (10) déroulée du rouleau (32) sous contrainte de traction, conjointement avec les produits imprimés (14), et un engin de manutention continue (28) pour l'évacuation de la formation imbriquée (S) déroulée, caractérisé en ce que le mandrin de bobinage (12) peut tourner librement, que le palier pour le rouleau (32) est constitué par au moins deux bandes de support sans fin (28, 28′) parallèles qui peuvent être entraînées et passent autour de poulies (24, 26) montées de manière tournante, et sur lesquelles le rouleau (32) avec les produits imprimés (14) enroulés repose de façon à pouvoir tourner, que la bande d'enroulement (10) s'étend entre les bandes de support (28, 28′) en direction de la bobine de bande (48), que le brin porteur (30) des bandes de support (28, 28′) présente, lorsqu'il supporte le rouleau (32) et respectivement le mandrin de bobinage (12), une flèche pour la stabilisation dudit rouleau (32) et respectivement dudit mandrin de bobinage (12), et que les bandes de support (28, 28′) sont entraînées, éventuellement de manière freinée, de telle façon que la bande d'enroulement (10) est maintenue sous effort de traction.
2. Dispositif selon la revendication 1, caractérisé en ce que les poulies (24, 26) sont montées de manière tournante sur des arbres (20, 22) montés de manière stationnaire sur un bâti (18).
3. Dispositif selon la revendication 1, caractérisé en ce qu'au moins les unes des poulies (24) sont montées sur un arbre (20) lequel est mobile dans le sens horizontal.
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce qu'il comporte deux guidages (34) pour le guidage latéral du rouleau (32) déposé sur les bandes de support (28, 28′), qui s'étendent sensiblement parallèlement aux bandes de support (28, 28′) et reçoivent entre eux lesdites bandes de support (28, 28′).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que chacune des bandes de support (28, 28′) passe respectivement autour de deux poulies (24, 26) tournantes et que la bobine de bande (48) est montée de manière tournante entre les poulies (26) voisines.
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que les bandes de support (28, 28′) et la bande d'enroulement (10) peuvent être entraînées au moyen d'un entraînement commun (52).
7. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que la bobine de bande (48) peut être entraînée au moyen d'un entraînement (52) et que les bandes de support (28, 28′) peuvent se déplacer librement ou de manière freinée.
8. Dispositif selon la revendication 6, caractérisé en ce que la bobine de bande (48) peut être entraînée au moyen d'un accouplement à glissement (56) agissant entre l'entraînement (52) et la bobine de bande (48), de sorte que la bande d'enroulement (10) peut être enroulée sous une contrainte de traction sensiblement constante.
9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que la bobine de bande (48) est montée en dessous des brins porteurs (30) des bandes de support (28, 28′) pour que la bande d'enroulement (10) croise les brins porteurs (30) avant que, vu dans la direction de transport (D) des produits imprimés (14), lesdits produits imprimés (14) se détachent du rouleau (32).
10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que, vu dans la direction de mouvement (B) des brins porteurs (30) des bandes de support (28, 28′), un transporteur d'évacuation (58), de préférence une bande transporteuse, est monté en aval pour évacuer les produits imprimés (14) des bandes de support (28, 28′).
11. Dispositif selon la revendication 1, caractérisé par une limitation (40, 42) agissant sur le mandrin de bobinage (12) et destinée à empêcher le rouleau (32) de sortir des bandes de support (28, 28′) dans le sens de leur extension longitudinale.
12. Dispositif selon l'une des revendications 4 et 11, caractérisé en ce que la limitation (40, 42) est un bout d'arbre (42) dépassant du rouleau (32) et pouvant être engagé dans le mandrin de bobinage (12), lequel bout d'arbre est guidé dans les guidages (34) de manière à coulisser dans le sens vertical.
EP88108121A 1987-05-27 1988-05-20 Dispositif pour dérouler des produits imprimés enroulés en formation d'écailles de poisson sur un noyau d'enroulement à l'aide d'une bandelette d'enroulement Expired - Lifetime EP0292891B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH204487 1987-05-27
CH2044/87 1987-05-27

Publications (2)

Publication Number Publication Date
EP0292891A1 EP0292891A1 (fr) 1988-11-30
EP0292891B1 true EP0292891B1 (fr) 1991-07-24

Family

ID=4224631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88108121A Expired - Lifetime EP0292891B1 (fr) 1987-05-27 1988-05-20 Dispositif pour dérouler des produits imprimés enroulés en formation d'écailles de poisson sur un noyau d'enroulement à l'aide d'une bandelette d'enroulement

Country Status (5)

Country Link
US (1) US4901935A (fr)
EP (1) EP0292891B1 (fr)
JP (1) JP2525640B2 (fr)
DE (1) DE3863844D1 (fr)
FI (1) FI90032C (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3824328C1 (fr) * 1988-07-18 1989-12-21 Kone-Anlagenbau Gmbh, 8900 Augsburg, De
IT1228852B (it) * 1989-02-22 1991-07-05 Meschi Ind Grafica Dispositivo svolgitore per bobine di carta.
US5420390A (en) * 1990-01-19 1995-05-30 Mitsubishi Denki Kabushiki Kaisha Image heating apparatus using a microwave discharge plasma lamp
CH684267A5 (de) * 1990-03-23 1994-08-15 Ferag Ag Einrichtung zum Abwickeln von flexiblen Flächengebilden ab einem Wickel.
ATE106355T1 (de) * 1990-09-28 1994-06-15 Ferag Ag Einrichtung zum aufwickeln von druckereiprodukten.
IT221831Z2 (it) * 1991-04-18 1994-10-20 Meschi Ind Grafica Dispositivo per lo svolgimento di una striscia di carta da una bobina
DE4221911A1 (de) * 1992-07-03 1994-01-05 Kolbus Gmbh & Co Kg Verfahren zum Stapeln von Druckbogen und Vorrichtung zur Durchführung des Verfahrens
US5332166A (en) * 1992-07-15 1994-07-26 George Kepes Method and apparatus for winding or unwinding cable onto a reel
DE59501544D1 (de) 1994-12-30 1998-04-09 Ferag Ag Lagerungsvorrichtung für eine Wickeleinheit und Vorrichtung zum Verarbeiten von Druckereiprodukten
CH690618A5 (de) * 1995-04-25 2000-11-15 Grapha Holding Ag Vorrichtung zum Auf- und Abwickeln von mehrheitlich flachen Druckprodukten.
CA2195590A1 (fr) * 1996-02-16 1997-08-17 Jurg Vollenweider Methode et dispositif pour l'enroulement des produits imprimes disposes en cascade
US6290164B1 (en) 2000-03-01 2001-09-18 Kt Equipment (International) Inc. Method and apparatus for supplying strip material
ATE260217T1 (de) * 2000-05-17 2004-03-15 Grapha Holding Ag Verfahren und einrichtung zur herstellung eines wickels aus druckprodukten
JP5963231B2 (ja) * 2011-09-27 2016-08-03 大王製紙株式会社 ティシュペーパー製品の製造方法

Family Cites Families (14)

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Publication number Priority date Publication date Assignee Title
DE450545C (de) * 1927-10-12 Koenig & Bauer Schnellpressfab Papierrollenantrieb fuer Rotationsdruckmaschinen
US2731213A (en) * 1951-06-29 1956-01-17 Alvin F Groll Strip stock feeder
AT228151B (de) * 1961-03-31 1963-07-10 Elin Union Ag Abrollvorrichtung
US3223344A (en) * 1963-10-22 1965-12-14 Cooper Weymouth Inc Coiled stock cradle feeders
US3472463A (en) * 1968-02-13 1969-10-14 Richard M Fedor Cartridge unit for coils
FR2076500A5 (fr) * 1970-01-16 1971-10-15 Inst Textile De France
DE2207556C3 (de) * 1972-02-18 1975-06-12 Burda Farben Kg, 7600 Offenburg Vorrichtung zum Speichern von nicht zusammenhängenden flächenförmigen Gebilden, wie Druckbogen
US3787001A (en) * 1972-03-14 1974-01-22 Woodman Co Web roll cradle with positive drive
US3931940A (en) * 1974-05-10 1976-01-13 Chromalloy American Corporation Carpet feeding, measuring and rolling apparatus
CH649062A5 (en) * 1980-07-15 1985-04-30 Ferag Ag Device for take-off from a roll of printed products
CH656862A5 (de) * 1982-06-15 1986-07-31 Grapha Holding Ag Verfahren und vorrichtung zum lagern von papierbogen.
ATE25060T1 (de) * 1983-12-16 1987-02-15 Ferag Ag Einrichtung zum zufuehren von druckprodukten an eine kontinuierlich arbeitende verarbeitungsstrasse und verfahren zu ihrem betrieb.
FI74260C (fi) * 1985-11-20 1988-01-11 Valmet Paper Machinery Inc Upprullningsanordning.
EP0243838B1 (fr) * 1986-04-30 1989-07-26 Ferag AG Procédé et dispositif de traitement de produits plats, en particulier d'imprimés

Also Published As

Publication number Publication date
JP2525640B2 (ja) 1996-08-21
FI90032C (fi) 1993-12-27
US4901935A (en) 1990-02-20
FI882495A0 (fi) 1988-05-26
FI882495A (fi) 1988-11-28
EP0292891A1 (fr) 1988-11-30
FI90032B (fi) 1993-09-15
DE3863844D1 (de) 1991-08-29
JPS63300047A (ja) 1988-12-07

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